GB2059086B - Flash control circuit for document copiers - Google Patents

Flash control circuit for document copiers

Info

Publication number
GB2059086B
GB2059086B GB8030341A GB8030341A GB2059086B GB 2059086 B GB2059086 B GB 2059086B GB 8030341 A GB8030341 A GB 8030341A GB 8030341 A GB8030341 A GB 8030341A GB 2059086 B GB2059086 B GB 2059086B
Authority
GB
United Kingdom
Prior art keywords
control circuit
flash control
document copiers
copiers
document
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8030341A
Other versions
GB2059086A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of GB2059086A publication Critical patent/GB2059086A/en
Application granted granted Critical
Publication of GB2059086B publication Critical patent/GB2059086B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
    • H05B41/325—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation by measuring the incident light
GB8030341A 1979-09-19 1980-09-19 Flash control circuit for document copiers Expired GB2059086B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/077,237 US4272188A (en) 1979-09-19 1979-09-19 Exposure compensation circuit for a copier

Publications (2)

Publication Number Publication Date
GB2059086A GB2059086A (en) 1981-04-15
GB2059086B true GB2059086B (en) 1983-09-14

Family

ID=22136880

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8030341A Expired GB2059086B (en) 1979-09-19 1980-09-19 Flash control circuit for document copiers

Country Status (3)

Country Link
US (1) US4272188A (en)
JP (1) JPS56107232A (en)
GB (1) GB2059086B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4537499A (en) * 1983-03-21 1985-08-27 Xerox Corporation Imaging system for producing reduced or enlarged images of an original document
US4530592A (en) * 1983-03-21 1985-07-23 Xerox Corporation Registration mechanism for a multimagnification reproduction apparatus
US4524289A (en) * 1983-04-11 1985-06-18 Xerox Corporation Flash lamp power supply with reduced capacitance requirements
US4794422A (en) * 1986-06-09 1988-12-27 Xerox Corporation Electrophotographic reproduction machine with document exposure system directly coupled to ac line input
JP2506774B2 (en) * 1986-06-09 1996-06-12 ゼロツクス コ−ポレ−シヨン Electrophotographic document copier
DE3733256A1 (en) * 1987-10-01 1989-04-20 Quick Rotan Elektromotoren SENSOR DEVICE
US5045882A (en) * 1989-04-27 1991-09-03 Xerox Corporation Xerographic setup and operating system for electrostatographic reproduction machines
US5016050A (en) * 1989-04-27 1991-05-14 Xerox Corporation Xerographic setup and operating system for electrostatographic reproduction machines
US4992829A (en) * 1989-04-27 1991-02-12 Xerox Corporation Flash lamp intensity control for electrostatographic reproduction machines
US5006892A (en) * 1989-04-27 1991-04-09 Xerox Corporation Xerographic setup and operating system for electrostatographic reproduction machines
US5051781A (en) * 1989-04-27 1991-09-24 Roehrs Daniel C Xerographic setup and operating system for electrostatographic reproduction machines

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1246655A (en) * 1967-12-28 1971-09-15 Paul Metz Automatic flash apparatus for use with a camera
US3519879A (en) * 1968-07-25 1970-07-07 Honeywell Inc Flash apparatus with automatic light termination having gating and anticipation means
US3697177A (en) * 1970-06-26 1972-10-10 Addressograph Multigraph Illuminating system for a copying machine
US3774072A (en) * 1971-01-22 1973-11-20 Honeywell Inc Remotely powered quench control sensing transmitter
US3737721A (en) * 1971-01-22 1973-06-05 Honeywell Inc Computer flash with remote sensor and two-wire control of flash firing and quench
US3985440A (en) * 1972-03-01 1976-10-12 Hoechst Aktiengesellschaft Process and apparatus for automatic exposure time control in copying devices
GB1452490A (en) * 1973-12-21 1976-10-13 Xerox Corp Document copying apparatus
DE2438491C2 (en) * 1974-08-10 1985-04-04 Hoechst Ag, 6230 Frankfurt Device for controlling the exposure by changing the transport speed of an original and the illuminance of a light source in a copier
US4017180A (en) * 1975-08-07 1977-04-12 Adddressograph Multigraph Corporation Exposure control for copying machine
US4093376A (en) * 1976-06-01 1978-06-06 Bell & Howell Company Automatic exposure control

Also Published As

Publication number Publication date
US4272188A (en) 1981-06-09
GB2059086A (en) 1981-04-15
JPS56107232A (en) 1981-08-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee